50Hz, 60Hz, 400Hz Solid State Frequency Converter

It is easy to convert voltage using a transformer or maybe a switching adapter but it is not so easy to change frequency. After some search I found there exist frequency converters but they are very expensive professional equipment, not gadgets for the traveler, so I set out to design and build one myself.

The power this frequency converter can output depends mainly on the value of C1 and C2; the larger they are, the greater the output. The transistors are oversized for this low power application and could handle much more power supposing they are mounted on an adequate heat sink and the control section would not be affected at all. As this circuit outputs 115 V RMS it can be used as a voltage converter even if the device does not require 60Hz and would work with 50 Hz but in this case a transformer is really a better solution.

When you have in receptacle the 220 volts and 50 Hz the buy from China guy the thyristor step down transformer but you have to remember about power (Watts). On the market you can buy the unit up to 2500 Watts. I have old radio from US and because of good low basses I use its with the converter. Still you have to know that there is not standard for receptacles/socket outlets and plugs. Every country has its own sizes. So when you taking the refrigerator from US and it is 600 Watts/110Volts this converter done by Chinese mobsters is OK. You can used worldwide its. It doesn't matter of the frequency 50 or 60 Hertz (Hz). Electrical 3 phases motor will work too.

It covered everything what necessary to do for appliance of 110 Volts and 220 Volts. Remember connect with 110 Volts only appliances good for 110 V. and connect with 220 V the appliances good for 220 V. When your appliance is different use special step up converter 110V to 220V or step down converter 220V to 110 V. There is no other ways.

All of this demonstrated learning it is safer / easier to customize pumps and fans which are designed to 60Hz when you want to run them with 50Hz than if you have the corresponding 50Hz system that you want to run with 60Hz power supply.

We all know that the effect influence with the practical results is very low but it would be interesting if there is anyone who can go further into how much (or little) the effect affects the energy performance of an ordinary equipment in the 50 to 60 Hz in compared to pure DC. Moreover, we have to consider the differences in impedance, these are also small but not completely non-existent.